1 Harvard University, USA

2 Stanford University Stanford University?

University of Cambridge, UK University of Cambridge, UK

University of California, Berkeley, USA

5 Massachusetts Institute of Technology Massachusetts Institute of Technology

6 California Institute of Technology California Institute of Technology?

Princeton University, USA Princeton University, USA

Oxford University, UK Oxford University, UK

9 Columbia University, USA Columbia University, USA

/kloc-0 0 University of Chicago, USA